import assert from "node:assert/strict";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import test from "node:test";
import { DurableSessionStore } from "../src/core/durable-session-store.js";

test("persists chat role and native session across reopen", async () => {
  const dir = await fs.promises.mkdtemp(path.join(os.tmpdir(), "gori-store-"));
  const file = path.join(dir, "state.json");
  const first = new DurableSessionStore(file);
  await first.open();
  await first.setSelectedRole("qq:chat", "ops");
  await first.setBinding({ chatKey: "qq:chat", roleId: "ops", backendId: "kimi", nativeSessionId: "native-1", workspace: "/tmp", roleFingerprint: "fp", createdAt: 1, updatedAt: 1 });
  await first.close();
  assert.equal((await fs.promises.readdir(dir)).some((name) => name.endsWith(".tmp")), false);

  const second = new DurableSessionStore(file);
  await second.open();
  assert.equal(second.getSelectedRole("qq:chat", "assistant"), "ops");
  assert.equal(second.getBinding("qq:chat", "ops")?.nativeSessionId, "native-1");
  await second.close();
});

test("preserves corrupt state and fails explicitly", async () => {
  const dir = await fs.promises.mkdtemp(path.join(os.tmpdir(), "gori-store-bad-"));
  const file = path.join(dir, "state.json");
  await fs.promises.writeFile(file, "not-json");
  const store = new DurableSessionStore(file);
  await assert.rejects(store.open(), /original file was preserved/);
  assert.equal(await fs.promises.readFile(file, "utf8"), "not-json");
});

test("refuses a second writer lock", async () => {
  const dir = await fs.promises.mkdtemp(path.join(os.tmpdir(), "gori-store-lock-"));
  const file = path.join(dir, "state.json");
  const first = new DurableSessionStore(file); await first.open();
  const second = new DurableSessionStore(file);
  await assert.rejects(second.open(), /locked by another/);
  await first.close();
});